diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2021-06-02 22:16:16 -0700 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-06-03 23:31:45 +0200 |
| commit | ded32d381cbb06e9cc8915dbcb92be941e195cda (patch) | |
| tree | 7aafdf429472a9e246c1ae5ca35b142e190f0d57 /drivers/gpu/drm/i915/gt/uc/intel_guc.c | |
| parent | 0a8e247dc1fa7a4b1e91b41f833f2a5f14c6d3f3 (diff) | |
| download | linux-ded32d381cbb06e9cc8915dbcb92be941e195cda.tar.bz2 | |
drm/i915/guc: Drop guc->interrupts.enabled
Drop the variable guc->interrupts.enabled as this variable is just
leading to bugs creeping into the code.
e.g. A full GPU reset disables the GuC interrupts but forgot to clear
guc->interrupts.enabled, guc->interrupts.enabled being true suppresses
interrupts from getting re-enabled and now we are broken.
It is harmless to enable interrupt while already enabled so let's just
delete this variable to avoid bugs like this going forward.
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210603051630.2635-7-matthew.brost@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc.c | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index ab2c8fe8cdfa..18da9ed15728 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -96,12 +96,9 @@ static void gen9_enable_guc_interrupts(struct intel_guc *guc) assert_rpm_wakelock_held(>->i915->runtime_pm); spin_lock_irq(>->irq_lock); - if (!guc->interrupts.enabled) { - WARN_ON_ONCE(intel_uncore_read(gt->uncore, GEN8_GT_IIR(2)) & - gt->pm_guc_events); - guc->interrupts.enabled = true; - gen6_gt_pm_enable_irq(gt, gt->pm_guc_events); - } + WARN_ON_ONCE(intel_uncore_read(gt->uncore, GEN8_GT_IIR(2)) & + gt->pm_guc_events); + gen6_gt_pm_enable_irq(gt, gt->pm_guc_events); spin_unlock_irq(>->irq_lock); } @@ -112,7 +109,6 @@ static void gen9_disable_guc_interrupts(struct intel_guc *guc) assert_rpm_wakelock_held(>->i915->runtime_pm); spin_lock_irq(>->irq_lock); - guc->interrupts.enabled = false; gen6_gt_pm_disable_irq(gt, gt->pm_guc_events); @@ -134,18 +130,14 @@ static void gen11_reset_guc_interrupts(struct intel_guc *guc) static void gen11_enable_guc_interrupts(struct intel_guc *guc) { struct intel_gt *gt = guc_to_gt(guc); + u32 events = REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST); spin_lock_irq(>->irq_lock); - if (!guc->interrupts.enabled) { - u32 events = REG_FIELD_PREP(ENGINE1_MASK, GUC_INTR_GUC2HOST); - - WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_GUC)); - intel_uncore_write(gt->uncore, - GEN11_GUC_SG_INTR_ENABLE, events); - intel_uncore_write(gt->uncore, - GEN11_GUC_SG_INTR_MASK, ~events); - guc->interrupts.enabled = true; - } + WARN_ON_ONCE(gen11_gt_reset_one_iir(gt, 0, GEN11_GUC)); + intel_uncore_write(gt->uncore, + GEN11_GUC_SG_INTR_ENABLE, events); + intel_uncore_write(gt->uncore, + GEN11_GUC_SG_INTR_MASK, ~events); spin_unlock_irq(>->irq_lock); } @@ -154,7 +146,6 @@ static void gen11_disable_guc_interrupts(struct intel_guc *guc) struct intel_gt *gt = guc_to_gt(guc); spin_lock_irq(>->irq_lock); - guc->interrupts.enabled = false; intel_uncore_write(gt->uncore, GEN11_GUC_SG_INTR_MASK, ~0); intel_uncore_write(gt->uncore, GEN11_GUC_SG_INTR_ENABLE, 0); |